A bike is stolen at 5:00 AM.The thief drives it towards east at a speed of 50km/hr.The theft is discovered at 5:30 AM and a police car is set off towards east at 60km/hr.At what time will the car overtake the bike?
A)8:00 AM
B)8:30 AM
C)9:00 AM
D)9:30 AM
(for me option B is the correct answer but made easy provided option A as the key)